Swing.



G. J. MCGUIRE."

SWING.

APPLICATION FILED DEC. I8. 1916.

1,259,649. 7 Patented Mar. 19, 1918.

W/ THE 5 SE5. G d 1 172:

J/. or. M

W BY H/s fiTTOfi/VEYS fmw M MW GEORGE J. MCGUIRE, 0F MINNEAPOLISfMINN-ESTA.

SWING.

Specification 01 Letters Patent.

Patented Mar.19, 191 8;-

Application filed December 18, 1916. Serial No; 137,640.

To all whom itmag concern Beit known thatI, GEORGE J. MCGUIRE,

, a...citizen,of the United. States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Swings; and I do hereby declare the followingto be a full, clear, and exact description of the invention, .suchas will enable others skilled in. the art to whichit appertains to make and use the same My inventionrelates to improvements in swingsof'the type havingmeans whereby theoccupant may propel the same by foot and arm movement. To the above end, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying, drawings, which. illustrate the invention, like characters indicate like parts throughout the several views.

Referringto the drawings,

Figurel is a front elevation of the improved swing;

Fig. 2 is a. view partly in side elevation and partly in vertical section taken on the line 2--2 of Fig. 1; and

Fig. 3 is a detail view showing modified means for supporting the swing.

The overhead support for the swing, shown in Figs. 1 and 2, is in the form of a: horizontal. pipe lrsecuredby elbows 2 to theupper ends of a pair. of upright pipes 3, the lower ends of which are set into the ground and securely anchored. To brace the support l in the plane of the oscillation of the swing, oppositely extended guy wires orcablest are secured to said support and anchored to the ground.

The swing is secured to the support 1 by upper and lower castings 5 and 6, respectively, which are detachably connected by nut-equipped bolts 7. Integrally formed with the casting .5, is an upright lug 8 having a horizontal bore, through which the support 1 is telescoped, A set screw 9 holds the casting 5 in position on thesupport 1. This set screw 9 has screw-threaded engagement with the lug 8 and its inner end impinges against.v said, support. Integrally formed. with the casting 6, is adepending bifurcated lug. 10 and a rearwardly and downwardly projecting arm 11, the free end of which is bifurcated to receive a sheave .12,,.which is ournaled to the prongs thereof.

The upper end of 'a depending link-13 is inserted between the prongs 'of'the lug 10 and 1s pivoted thereto for swingi'n'g'move-I ment in the plane of the oscillation of the swing. A transverse bar 14: is secured, atits intermediate portion, to the lower: end of the link 13. integrally formed with the lower end of the link 13, is a horizontal and rearwardly projecting extension 15', which is bifurcated to receive a sheave16 jour naled to the prongs thereof. The sheaves 12 and 16 are both located in the same'verti cal plane with the link 13', and hence, in the plane of the oscillation of 'the'swing,

The swing seat 17 is rigidlyse'cured to and between a pair of side bars-l8,"thefront ends of which are extended considerably forward of said seat. A pair of cablesl19 support the seat 17 from the transverse bar 14:. The upper ends of these cables 19 are attached to eyes 20 in the ends of the trans verse bar 14 and their lower ends are at tached' in perforated lugs 21, integrally formed with the upper edges of the side bars 18 and at the longitudinal centers thereof. Obviously, the seat 17 may be raised or loweredito suit the operator by adjusting the cables 19 in either the eyes'20 or lugs 21; V

The seat 17 is providedwitha'backj22, thelower end of which. is inserted between the sidebars 18, at their rear ends, and is pivoted thereto at 23. This back 22 is held in an upright position by a pair of'cables 2-lattached, at one of their ends, to eyes 25 secured in the vertical'edge portions of said back and having their other ends tied to the cables 19. The inclination of theback 22 may be varied by changing the operative link of the cables 24. j

The following connections are" provided for propelling the swing, to wit :a baillike foot bar 26, a pair of bell crank levers 27, a pair of primary pulling cables 28*and a secondary pulling cable 29. The bell crank levers 27 are located between 'the'side bars 18, extend'para'llel thereto and are pivoted,

one to the outerend of each of said levers bar 26 are tubular totele scopically receive the free ends ofthe arms 30 and are provided with a'multiplicity of longitudinally spaced transverse holes The footba-r 26is adjustably secured to the arms 30 by I intermediate portion of the cross bar 35 and its upper end is attached to a perforated lug 37, integrally formed with the link 13 at the junction of the extension 15 therewith. The intermediate portion of the 15 cable 29 runs over the sheaves 12 and 16. To hold the cables 28 and 29 properly spaced on the cross bar 35, said cross bar is bent to afford offsets 38 in which said cables are secured. Hand holds 39 are secured to the pulling cables 28.

In the modification shown in Fig. 3, the casting 5 is removed and the casting 6 is secured by lag screws 40 to an overhead support,41, such as the ceiling of a room or porch or top member of a door frame. I

The propelling of the improved swing may be briefly described as follows:

The operator, while seated, grasps the hand hold 39 with his hands and supports his feet on the foot bar 26. Then by drawing downward on the pulling cables 28 and pushing outward on the foot bar 26, causes the cable 29 to runover the sheaves 12 and 16, which draws the free end of the link13 toward the sheave 12 and imparts the rearward movement to the swing. The operator then releases hispull on the cables 28 and 29 and allows the swing to move forward under the action of gravity. By repeating this operation, the operator may swing as high and fast as he pleases.

- oscillatory movement of theswing, the cross bar'35 moves upward and downward on the cables 19 and, together with guide sheaves 42 journaled to the inner faces of the bars 18 directly under the lugs 21, holds the pulling cables 28 in substantially parallel arrangement with the cables 19.

WhatI claim is 1. A swing comprising an overhead support, a link pivotally suspended from said support and having at its lower end a transverse bar, a fixed cable guide offset from the link in the plane of the oscillation of the swing, a seat, a pair of cables suspending the seat from the transverse bar, and a pulling cable attached to the link and having its intermediate portion extended over the fixed cable guide.

2. A swing comprising an overhead support, a link pivotally suspended from said i support and having at its lower end a transversebar and an ofiset cable guide, a fixed cable guide-offset from the link, said two cable guides being offset in the plane of the During the cable guides being olfsetin theplane of the oscillation of the swing, a seat, a pair of cables suspending the seat from the transverse bar,' and a pulling cable attached to the link .and having its intermediate portion extended over saidtwo cable guides.

3. Aswing comprising an overhead support, a link pivotally suspended from said support and having at its lower end a transverse bar and an ofiset cable guide, a fixed cable guide ofiset from the link, said two cable guides being offset in the plane of the oscillation of the swing, a seat, a pair of cables suspending the seat from thetransverse bar, a cross bar guided by the seatsupporting cables, a secondary pulling cable attached at one end to the link and at its other end to the cross bar and having its intermediate portion extended over said two cable guides, and a pair of primary pulling cables attached to the cross bar. f

4. A swing comprising an overhead support, a link pivotally suspended from said support and having at its lower end a transverse bar and an offset cable guide, a fixed cable guide offset from the link, said two cable guides being offset in the plane of the oscillation of the swing, a seat having for wardly extended side members, foot-actuated levers fulcrumed on said side members, a pair of cables suspending the seatfrom the transverse bar, a cross bar guided bythe seat-supporting cables, a secondary pulling cable attached at one end to the link and at its other end to the cross bar and having its intermediate portion extended over said two cable guides, and apairj of primary pulling cables attached at one of their ends to the cross bar and'at their other ends to said foot-actuated levers. I

5. A swing comprising an overhead support, a link pivotally suspended from said support and having at its lower end a transverse bar and anoffset cable guide, a fixed cable guide offset from the link, said two oscillation of the swing, a seat having forwardly extended side members, foot-actuated levers fulcrumed on said side members, a pair of cables suspending the seat from the transverse bar, a cross bar guided by the 1 seat-supporting cables, a secondary pulling cable attached at one end to the link and at its other end to the cross bar and having its intermediate portion extended over said two cable guides, a pair of primary pulling cables attached at one of their ends to-the cross bar and at their other ends to said foot-actuated levers, and guides on the seat for the primary pulling cables. 7

6. A swing comprising an overhead sup- 12 port, a seat having forwardly projecting sidemembers, a pair of cables suspending the seat from said support, a foot lever fulcrumed on the forwardly projecting side members of said seat and having crank' arms, and pulling cables attached to the crank arms and arranged to oscillate the swing.

7. A swing comprising an overhead support, a seat having forwardly projecting side members, a pair of cables suspending the seat from said support, a pair of bell crank levers fulcrumed on the forwardly projecting side members of the seat, a foot bar secured to corresponding ends of the bell crank levers, and pulling cables attached to the other corresponding ends of said levers and arranged to oscillate the swing.

8. A swing comprising an overhead support, a seat having forwardly projecting side members, a pair of cables suspending the seat from said support, a pair of bell crank levers fulcrumed on the forwardly projecting side members of the seat, a bail-like foot bar the prongs of which are adjustably secured to corresponding ends of the bell crank levers, and pulling cables attached to the other corresponding ends of said levers and arranged to oscillate the swing.

9. A swing comprising an overhead support, a seat, a foot lever fulcrumed on the seat, hangers supporting the seat from the overhead support, a pulling cable having one of its ends attached to one of said hangers in the vicinity of the overhead support and having its other end attached to the foot lover, a fixed cable guide secured to the overhead support and offset from the swing in the plane of the oscillation thereof, and upper and lower cable guides, the former of which is secured to one of said hangers in the vicinity of the attached upper end of the pulling cable and the latter of which is secured to the seat, said pulling cable from its attached upper end being extended over the fixed cable guide and thence downward over the upper and lower cable guides, said upper and lower cable guides definitely holding the pulling cable therebetween longitudinally of the seat supporting hangers.

In testimony whereof I afiix my signature in presence of two witnesses.

GEORGE J. MCGUIRE. WVitnesses:

CLARA DEMAREsT, HARRY D. KILGORE.

fiopiea of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. C. 

